Fantasy speculation - not a request for legal advice.
A while back, I was hired at a company that made me sign a document saying that I would do all the assigned work myself, without hiring an assistant.
If they thought to include the clause, does that mean that there is a general right for an employee to hire an assistant and pay them out of pocket unless there is an explicit policy (such as a “no private assistants” policy or a general NDA that says you can’t disclose work related info, which whould mean that your assistant can’t help you with much of your work since you would need to disclose company confidential info to them).
In my area (of the US), there are a lot of legal immigrants and down-on-their-luck citizens who would probably love to work for me for a few hours a week bringing me refreshments, doing the “grunt” portions of my job such as installing software or writing up mindless process documents, and otherwise being at my beck and call, and I could probably afford to give them a part time job at minimum wage, considering what I make. <jest>I could hire some local 18 year old single-mom high school dropout to wear a french maid outfit and stand in my cube and make her bring me coffee every half hour and call me “master”. </jest>
Note that I’m not talking about company-hired assistants where the assistant is paid out of the same budget you are and is an allowable expense - I’m talking about taking part of your salary and hiring someone else to do the parts of your job that you don’t care to do and that you think the other person can do without driving down your performance metrics.